Stability assay of allantoin in lotions and creams by high-pressure liquid chromatography
โ Scribed by Z. R. Zaidi; F. J. Sena; C. P. Basilio
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 229 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0022-3549
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๐ SIMILAR VOLUMES
A high-pressure liquid chromatographic method for the assay of benzoyl peroxide in dermatological preparations is described. Degradation products such as benzoic acid and perbenzoic acid do not interfere. The method is simple, precise, accurate, and stability indicating.
Allantoin is quantitatively determined in biological fluids by reversed-phase high-pressure liquid chromatography. The proteins of blood plasma are precipitated by perchloric acid. Urine can be analyzed directly. The reproducibility was over 99%. The average recovery of added allantoin in blood was